m3s085ct.v

这是16位定点dsp源代码。已仿真和综合过了

//*******************************************************************       //
//IMPORTANT NOTICE                                                          //
//================                                                          //
//Copyright Mentor Graphics Corporation 1996 - 1998.  All rights reserved.  //
//This file and associated deliverables are the trade secrets,              //
//confidential information and copyrighted works of Mentor Graphics         //
//Corporation and its licensors and are subject to your license agreement   //
//with Mentor Graphics Corporation.                                         //
//                                                                          //
//These deliverables may be used for the purpose of making silicon for one  //
//IC design only.  No further use of these deliverables for the purpose of  //
//making silicon from an IC design is permitted without the payment of an   //
//additional license fee.  See your license agreement with Mentor Graphics  //
//for further details.  If you have further questions please contact        //
//Mentor Graphics Customer Support.                                         //
//                                                                          //
//This Mentor Graphics core (m320c50eng v1999.010) was extracted on         //
//workstation hostid 800059c1 Inventra                                      //
// Carry4
// Copyright Mentor Graphics Corporation and Licensors 1998.
// V1.000

// m3s085ct.v
// M320C50 look-ahead carry adder, carry 4.

module m3s085ct (CarryIn, CarryGen, CarryProp, CarryOut);
//*******************************************************************       //
//IMPORTANT NOTICE                                                          //
//================                                                          //
//Copyright Mentor Graphics Corporation 1996 - 1998.  All rights reserved.  //
//This file and associated deliverables are the trade secrets,              //
//confidential information and copyrighted works of Mentor Graphics         //
//Corporation and its licensors and are subject to your license agreement   //
//with Mentor Graphics Corporation.                                         //
//                                                                          //
//These deliverables may be used for the purpose of making silicon for one  //
//IC design only.  No further use of these deliverables for the purpose of  //
//making silicon from an IC design is permitted without the payment of an   //
//additional license fee.  See your license agreement with Mentor Graphics  //
//for further details.  If you have further questions please contact        //
//Mentor Graphics Customer Support.                                         //
//                                                                          //
//This Mentor Graphics core (m320c50eng v1999.010) was extracted on         //
//workstation hostid 800059c1 Inventra                                      //
    input [3:0] CarryGen, CarryProp;
    input       CarryIn;
    output      CarryOut;

    reg CarryOut;

always @(CarryIn or CarryGen or CarryProp)
    CarryOut = CarryGen[3] | (CarryGen[2] & CarryProp[3]) |
           (CarryGen[1] & CarryProp[2] & CarryProp[3]) |
           (CarryGen[0] & CarryProp[1] & CarryProp[2] & CarryProp[3]) |
           (CarryIn & CarryProp[0] & CarryProp[1] & CarryProp[2] & CarryProp[3]);

endmodule